Your AI-built app is almost there. I'll finish it.
You used Lovable, Bolt, or Cursor to build your app. It looks right but doesn't work right - payments fail, auth breaks on mobile, users can see each other's data, and you can't deploy to your domain. I fix all of that in 48-72 hours, flat rate.
Currently taking projects
AI built your app. But it didn't finish the job.
Payments
Stripe checkout shows a success page. No money lands in your account. Webhooks aren't configured, subscriptions aren't being created, and you've been giving away your product for free without knowing it.
Authentication
Ever tried logging in on your phone? It loops. Desktop works fine, but mobile Safari does something weird with the OAuth redirect and now half your users can't get past the login screen.
Security
Here's a question: do you have Row-Level Security configured on Supabase? If you're not sure, the answer is probably no. That means any user can see every other user's data. One API call. Entire database.
Deployment
Works great on the Lovable preview URL. Try putting it on your actual domain and nothing loads. Environment variables aren't set, SSL isn't configured, and the build keeps failing silently.
Mobile
Looks perfect on your laptop. Pull it up on an iPhone and buttons overlap, text runs off the screen, and the checkout form is unusable. Over half your visitors are on mobile.
Performance
Twelve seconds to load. A single component is re-rendering your entire database on every page view. Your users aren't waiting around for that.
You're not a developer. You shouldn't have to learn Stripe webhooks, Supabase RLS policies, or React component optimization to launch your product. That's what I do.
Fixed in three steps.
Send me your repo
Share your GitHub link or Lovable project. I'll look at it for 15 minutes - free - and tell you exactly what's broken and what it costs to fix. No sales call. No proposal. Just a straight answer.
I fix it
I clone your project, fix every issue I identified in the diagnostic, test the entire flow end-to-end on desktop and mobile, and deploy to your domain. Typical turnaround: 48-72 hours.
You ship it
You get your working app, a short video walkthrough of everything I fixed, and a written summary. One round of follow-up included if anything needs adjustment.
Everything between 'it looks right' and 'it actually works.'
Stripe & Payments
Webhooks, subscription creation, checkout flows, payment confirmations, Stripe Connect
Authentication
Login/signup flows, OAuth redirects, password reset, session management, mobile auth
Supabase Security
Row-level security policies, API key exposure, database permissions, user data isolation
Deployment
Custom domain setup, Vercel/Netlify configuration, environment variables, SSL, CI/CD
Mobile Responsiveness
Layout fixes, touch targets, viewport issues, Safari-specific bugs
Performance
Slow loads, unnecessary re-renders, unoptimized queries, bundle size reduction
Error Handling
Missing error states, silent failures, user-facing error messages, crash recovery
API Integrations
Broken endpoints, CORS errors, rate limiting, third-party service connections
Flat pricing. No surprises.
One specific broken feature or integration, fixed in 48-72 hours.
- One focused fix (auth, payments, deployment, mobile, or security)
- Full diagnosis included
- Tested on desktop and mobile
- One round of follow-up
Best for: That one thing that's blocking your launch.
Starting at
Full diagnostic and fix of your entire app. Everything that's broken, handled in 5-7 days.
- Complete security, performance, and functionality audit
- All critical issues fixed
- Supabase RLS properly configured
- Payments fully tested
- Deployed to production on your domain
- Written summary of everything fixed
- One week of post-delivery support
Best for: You want to know the whole app works before putting real users on it.
Starting at
Your app, production-ready. Fixed, polished, deployed, and monitored.
- Everything in Stabilization
- Unfinished features completed
- UI/UX polished to professional standard
- Analytics and error monitoring set up
- CI/CD pipeline configured
- 30-day post-launch support
- Loom walkthrough of the codebase
Best for: You're ready to launch to real paying customers.
Before and after.
Invoicing app - checkout looked fine, zero revenue coming through
Founder had been live for two weeks. Users were signing up and hitting the upgrade button. Stripe was showing successful checkouts on the frontend. But the webhook endpoint was returning 400s silently, so no subscription records were being created in Supabase. The app was giving away paid features to everyone.
- Rewired webhook handler, added signature verification
- Built the subscription lifecycle that was completely missing (create, update, cancel)
- Added actual error states so failures don't just disappear
First real payment hit the founder's account 36 hours after I started.
Fitness tracking app - login worked on desktop, infinite loop on every phone
Built in Bolt.new. Looked great in the preview. But on mobile Safari, logging in kicked you back to the login screen forever. Turns out the OAuth redirect was fighting with iOS WebKit's cookie handling. That wasn't even the worst part. There were zero RLS policies on Supabase. I checked: one API call could pull every user's workout history, email, and profile data. Wide open.
- Rebuilt OAuth redirect to handle Safari and iOS WebKit properly
- Wrote RLS policies for every table (12 tables, none had any)
- Fixed the token refresh flow that was silently expiring sessions
Deployed to the founder's domain on day 4. First 50 users onboarded that weekend with no issues.
Common questions.
Anything built with Lovable, Bolt.new, Cursor, Replit, v0, or any AI code generator. Most of these apps use React/Next.js + Supabase + Stripe, which is my core stack. If you're not sure, send me the repo and I'll tell you if I can help.
Quick Fix: 48-72 hours. Stabilization: 5-7 days. Fix & Ship: 1-2 weeks. I'll give you an exact number in the diagnostic.
I'll tell you during the diagnostic. If the foundation is too broken to fix - bad database schema, no real backend logic, hallucinated architecture - I won't pretend a fix will work. I'll give you an honest assessment and, if you want, we can discuss a rebuild as a separate engagement.
Read access to the repo, and sometimes temporary access to Supabase and Stripe to configure things. I'll tell you exactly what I need upfront. I don't store credentials.
I include one round of follow-up. If something breaks within 48 hours, I fix it free. I also send a video walkthrough so you can see what I did.
Quick Fixes and Stabilization Sprints focus on fixing what exists. The Fix & Ship tier includes completing unfinished features that are partially built. If you need entirely new features built from scratch, that's a custom engagement - reach out and I'll scope it.
Send me the repo. I look at it for 15 minutes. I tell you what's broken and what it costs. No call, no pitch. If you want to fix it yourself after that, go for it.
Who's fixing your app.
I'm Mikey Alexander. I build things fast - apps, tools, systems - using AI-assisted development. I've shipped multiple products from scratch and spent years in commercial production, which means I care about things working correctly AND looking right.
When AI code generators exploded, I started seeing the same pattern everywhere: founders building impressive-looking apps that broke the moment real users touched them. The apps weren't bad ideas. The tools just didn't finish the job.
So I started finishing them. I fix broken AI-built apps - auth, payments, security, deployment, mobile - and get them to production in 48-72 hours.
If your app is stuck between 'it looks right' and 'it actually works,' send me the repo. I'll tell you exactly what's wrong.
Send me your repo. I'll tell you what's broken.
Free 15-minute diagnostic. No call. No obligation. Just a straight answer about what's wrong and what it costs to fix.